C 热考内容 五育并举 KEY→P22
范畴:人与自我 主题:勤于动手 体裁:说明文 难度:★★★ 建议用时:7分钟 评价:/4
Do you know the warmth you feel on your skin from the sun is actually a type of energy? Do you want to try using it yourself? Today, we're going to dive into a super fun science experiment: building a solar tower!
You can try this project at home. You just need some tape, a pin(别针), paper, scissors, three cans and two books of equal size, and lastly, a sunny day!
Now, we're going to build the solar tower.
First, cut off the tops and bottoms of the cans, place the cans on top of each other and tape them together. Once the tower is ready, we can start working on our pinwheel(玩具风车) with a piece of square paper (about 15 cm × 15 cm). Next, use a pin to connect the pinwheel with the tower. Finally, put the can tower on top of the books, which are 5 cm apart from each other. So there's a gap(间隔) at the bottom, allowing the air to enter the tower.
Now, all we have to do is set the whole thing near a window, where there's direct sunlight. When the sun shines on the tower, it gets hot and warms the air in it. The warmer air moves upward through the tower and makes the pinwheel turn around as it passes by. Then cooler air comes in through the gap from the bottom of the tower, gets heated up, and rises, so the cycle goes on. This is how it works. How amazing!
This is such a fun and educational science experiment to enjoy as a family. We can learn a lot about the benefits of solar power and how it helps the earth, and it really sparks our interest in exploring other ways we can use the sun's energy.
素材来源: How Wee Learn
()1. 新考法·组合选择 What do you need to build the solar tower?
① tape and scissors ② three cans
③ round paper and glue ④ a pin and a sunny day
⑤ two books of the same size
A. ①③④⑤ B. ①②④⑤ C. ②③④⑤ D. ①②③⑤

()2. Why do we leave a gap between the two books?
A. To stop the tower from falling off.
B. To stop the books from heating up.
C. To make the air get into the tower.
D. To make the air get out of the tower.
()3. 新考法·图片理解 How does the air travel through the tower? (⊕ for warm air; ⊙ for cold air.)

()4. What does the underlined word "sparks" mean in the last paragraph?
A. leads to B. drops off C. connects with D. runs out of
英语嗨吧

[C] B C D A
本文主要介绍如何做一个太阳能塔。
1. B 组合选择题。由第二段内容可知,该实验不需要圆形纸和胶水。
2. C 细节理解题。根据第三段中“Finally, put the can tower on top of the books, which are 5 cm apart from each other. So there's a gap at the bottom, allowing the air to enter the tower.”可知,在这两本书之间留出空是为了让空气进入塔内。
3. D 图片理解题。根据第四段可知该实验的原理:当太阳光照在塔上时,它变热,使塔内的空气变暖;温暖的空气通过塔向上移动,在经过时使风车转动;然后较冷的空气从塔底部的间隔处进入,被加热,上升,这样循环下去。D 项符合该实验的原理。
4. A 词义猜测题。由最后一段最后一句可判断,太阳能的诸多优势确实激发了我们探索其他利用太阳能量的方式的兴趣。lead to 意为“引起;引发”,与 spark 同义。